Decide whether you want to spend around $80 or $250+ and go from there. I run a few different triggers in my other AR's (Wilson, Timney, & Geissle), and those are in the mid $250 range. I really didn't want to drop that much $$ on a trigger for my 15-22, so I went with a Rise Armarment RA 140-SST. I was lucky and found it on sale for under a C-note delivered. Regular price is around $130. Maybe not quite as good as my others, but, it's well built, drops in perfectly, works pretty darn well, and it's waaaay better than any mispec factory trigger.